Loom



H. M. WHITE.

LOOIV I.

APPLICATION FILED JAN 22, I920.

ISHEETS-SHEET I- WITNESSES. INVENTOR Patented Mar. 8.1921.

H. M. WHITE.

LOOM- 1,371,062. APPLICATION FILED JAN- 22, 1920- 8, 7 SHEET$SHEET 2- a 0 6 a o o 0 7 70 1 0 o a 0 W WITNESSES! INVENTOR farr yflf. White, a BY 7.) 7) I 1 I w HIS ATTORNEY H. M. WHITE.

LOOM.

APPLICATION FILED JAN-22. 1920.

Patenwd Mar; 8, 1921.

7 SHEETS-SHEET 3- INVENT'O R Jzar/yM W his,

WITNESS ES.

:1 @V5 BY W m I I l I Nonnls runs. Inc. L|mo.. WAsnmcmu. D. C.

HIS ATTORNEY H. M. WHITE.

LOOM.

APPLICATION FILED JAN. 22, 1920.

Patented Mar. 8, 1921.

7SHEETS-SHEE14.

INVENTQR b a/1y]! Wk z'te WITNESSES:

BY I

H. M. WHITE.

LOOM;

APPLICATION FILED JAN. 2Z, 1920. 1,371,062, Patented M21118, 1921'.

7 SHEETSSHEET 5 WITNESSESI 44 INVENTOR fifi. BY c White,

H. M. WHITE.

LOOM.

I APPLICATlON FILED JMLZZ, 1920- I 1,371,062, Patented Mar. 8, 1921.

7 SHEETSSHEET 6.

WITNESSES: INVENTOR $9 While,

BY ,2 v

HIS ATTORNEY H. M. WHJTE.

LOOM.

APPLICATION- FILED JAN. 22. 1920.

1,371,062. Patented Mar. 8,1921.

7 sHEETS-SHEEI I.

O Q w k m 63 m h WITNESSES! INVEN TOR z ar/cyM. Willie, (9 BY I I v PATENT OFFICE.

HARRY M. WHITE, OF PHILADELPHIA, PENNSYLVANIA.

LOOM.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed January 22, 1920. Serial No. 353,217.

To all whom it may concern Be 1t known that I, HARRY M. W'Hirn, a citizen of the United States, residlng at Frankford Phlladel ulna. 1n the count of I. Philadelphia and State or Pennsylvania, have invented certain new and useful Improvements in Looms, of which the following a specification.

One object of my invention is to provide improved structure on a loom which will operate during the action of the loom to automaticaly eject shuttles in which the yarn on the bobbins has been practically all used in the weaving operation.

Another object is to so construct my invention that the above mentioned ejection of the shuttles will take place without the loom losing any picks and which will also be so constructed that other full shuttles can be inserted in a position ready to take the place of the ejected shuttle during the automatic action of the loom.

A further object is to make the structure of my invention of a practical and strong nature so that it will not readily get out of order.

A still further object is to so design the structure of my invention that it can be attached to a loom without materialy changing the structure of the loom, thereby rendering it desirable and easy of attachment to looms of various types.

These objects. and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which Figures 1 and 1 are perspective views of opposite ends of a loom of the Crompton and Knowles type showing my invention thereon,

Fig. is a fragmentary elevation partly in section and partly shown diagrammatic illustrating certain electric connections forming a part of my invention.

Figs. Lite 6 inclusive are fragmentary elevations showing various positions occupied by elements of my invention during the operation of the loom and the operation of the means effective to eject shuttles as above described,

Fig. 7 is a sectional elevation taken trans versely through a series of shuttles in certain of the boxes; one of the shuttles being in a position O'C'CHPEQCl during the normal operation of the loom and also in a position capable on the next pick of the loom to cause the ejection of that shuttle and the movement of the upper shuttle into a position so as to continue the weaving operation,

Figs. 8 and 9 are elevations of a shuttle including means forming a part of my invention automatically operative to effect an electric action and thereby cause ejection of the shuttle; Fig. 8 showing the parts in positions occupied during the normal movement of the shuttle and Fig. 9 showing said parts in a position capable of effecting said electric action to cause ejection from the 100111 when the bobbin has nearly become empty,

Fig. 10 is a perspective view of one of the elements shown in Figs. 8 and 9,

Fig. 11 is a fragmentary longitudinal section showing the position of the element of Fig. 10 relatively to the yarn on the bobbin during the normal operation,

Fig. 12 is a view of similar nature to Fig. 11 showing how said element operates when the bobbin is nearly empty in order to effect the ejection of the shuttle having the bobbin therein,

Fig. 13 is an end elevation of certain of the elements for controlling the shuttle box motion, such for example as employed on the Crompton and Knowles loom and which has certain of the elements of my invention attached thereto, and

Fig. 14 is a side view of the elements shown in Fig. 13.

Referring to Figs. 13 and 1 1 of the drawings and particularly Fig. 1 1, 15 represents a chain wheel upon which a chain 16 is operative in the usual manner; said chain having balls 17 arranged thereon in various positions adapted to operate and control the movement of the shuttle boxes as called forin the weaving operation underordinary conditions; these balls 17 being co-active with mechanism which effects the movement of the levers, such for example as the levers 18 and 19 shown in Fig. 1 to effect the raising and lowering of the shuttle boxes; the movement of the chain wheel 15 being effective due to the engagement of a pin 20 on a rotatable member 21 engaging teeth 22 of a star wheel 23. The elements thus far specifically mentioned are present on various types of looms, such for example as above described and do not in themselves substitute a part of the present invention,-

however, I utilize certain of these elements in combination'with the elements of my invention hereinafter described for effecting movement of the boxes and also of other parts constituting my invention.

In carrying out my invention I employ a series of shuttle boxes preferably of the construction shown in Fig. 7 which are formed in a single casting; said boxes being indicated at 24, and 26. The uppermost box 24 has an open top 27 and side flanges 28 which are preferably flared as shown in Figs. 1 and 7 to provide a hopper into which a shuttle having a full bobbin can be quickly inserted by the weaver. The intermediate or second box 25 which is adapted to be normally held in alinement with the shuttle race of the lay during the weaving operation of the loom has an electric contact finger 29 projecting therein; said con.- tact plate being insulated from the boxes and normally out of the path of any part of the shuttle which enters the box 25 during the normal weaving operation of the loom.

v The third or lowermost box 26 has an opening 30 which intersects the front and bottom thereof so that a shuttle entering said box from the race, under certain conditions --will drop from said box.

The picker shaft 31 of the loom'has an eccentric 32 thereon which has an extension 33. This extension 33 is adjustably connected by a bolt 34 to the lower end 35 of a lever 36; said lever being pivotally con nected between its ends, as shown at 37 to the frame 38 of the loom. A pawl 39 is pivotally connected intermediate its length, as shown at 40, to the frame 38 and the lower end of this pawl has a pivot pin 41 thereon which forms a swinging connection for an arm 42; said arm having a hook 43 located at one side of the pivot pin 41 and the end opposite said pivot pin is connected by a link rod 44 to a pivoted armature 45;

- said armature having a portion opposite its pivot located adjacent the core 46 of an electro-magnet 4 A link 48 is pivotally mounted on the pivot pin 41 and has a spring 49 connected thereto; said spring also being connected to the frame 38 at 50. The link 48 has an extension 51 which is connected to one arm of a bell crank lever 52; the other arm of said bell crank lever being connected by a wire 53 or other flexible connection which extends transversely across the frame 38 and is con nected to an arm 54 which is pivotally mounted between its ends at 55. The arm 54 is connected by a link 56 to a bell crank lever 57; said bell crank lever being pivoted at 58 and having a yoked arm 59 adapted to slide'the member 21 under certain conditions during the operation of the mechanism so that the pin 20 will engage the teeth 22 of the star wheel 23 to cause rotation of the latter at certain times to effect movement of the chain 16 as will hereinafter be more fully described.

A detent latch 60 (see Figs. 3 to 6 inclusive) is pivotally mounted at 61 above the upper end of the pawl 39 and has notches 62 and 63 in its lower face. The outer or free end 64 of the detent latch 60 has a spring 65 secured thereto; said spring also being connected to the frame 38 and operative to move the detent latch 60 downwardly. The upper end of the pawl 39 is normally positioned within the notch 62 of the detent latch 60 as shown in Fig. 3. A latch releaser 66 is connected by a spring 67 to the frame 38 and is alsg pivotally connected to a crank or guiding arm 68; said guiding arm being pivotally connected at 69 to the frame 38.

A cable 70 is attached to the upper end of the latch releaser 66 and this cable 70 extends to the opposite side of the loom and is attached to the box operating lever 19; it being noted that the lever 19 has a chain 71 connected thereto which passes over a wheel 72 on the bottom of the lever 18 and then is connected by a flexible extension 7 which leads to the opposite end of the loom and is connected, in the usual manner to the shuttle box casting which includes in the present instance, the shuttle boxes 24, 25 and 26 as above described. It may be also stated that this connection of the chain 71 and ex tension 73 does not in itself form a part of my present invention since they are present on various types of looms for raising and effecting the lowering of the shuttle boxes due to the movement of the levers 18 and 19 above referred to.

The latch releaser 66 has a tooth 74 which projects from the side thereof and is adapted upon the lowering of the latch reieaser 66 by the spring 67 under certain conditions to pass under a lug 75 on the detent 60. When in its raised position as shown in Figs. 3, the latch releaser 66 has a cam portion 76 which engages a swell 77 on the frame 38; the purpose of this structure being obvious from the following description concerning the operation of the mechanism.

The coil of the electro-magnet 47 has one end attached by a wire 78 to one pole of a battery 79 or other source of electric sup ply; the opposite pole of said battery being connected to the contact plate 28. The other end of the coil of the eleotro-magnet is connected by a wire 80 and ground connection to the frame of the shuttle boxes. I also preferably employ one or more push buttons such for example as shown at 81 in Fig. 2; said push buttons being in connee tion with the grounding on the frame and with the battery and electro-magnet' so that when the push button 81 is manually operated the electro-magnet will be energized.

Each of the shuttles has an electric contact finger 82, as clearly shown in Figs. 8 to 12 inclusive. These electric contact fingers are pivotally mounted at 83 and have slots 84:.through which pins 85 project from the body of the shuttles. Springs 86 within the shuttles are adapted to move the edge portion 87 upwardly when angular stems 88 on said contact fingers permit such action. These angular stems 88 have hooked portions 89 which extend upwardly within grooves 90 in the bobbin heads 91. The edges 92 of the hooked portions 89.normally engage the yarn 93 which is wound on the bobbins and thus while there is a comparatively large quantity of yarn wound on the bobbins, the angular stems 88 are held in the position shown in Figs. 8 and 11 with the edges 87 of the contact fingers entirely within the body of the shuttle. lVhen the yarn upon the bobbin has nearly all run off so that said yarn offers little or no resistance to the movement of the angular stems 88 by the springs 86, the latter will push the edge portions 87 upwardly and when any one of the shuttles enters the intermediate box 25, the contact finger thereof will push the contact plate 29 up into engagement with the frame of the shuttle boxes and thereby complete an electric circuit through the electromagnet 2&7. This action will magnetize the core 48 and attract the armature as causing the latter to swing on its pivot to move the link rod at upwardly.

It will be noted that during the normal operation of the loom with the parts for example as shown in Fig. 3, the box as previously stated will be in alinement with the shuttle race on the lay 9%; this box having been moved into said position by the action of the lever 19; said action of the lever also serving to pull the wire or cable 70 and thus raising the latch releaser 66 into the position shown in Fig. 3. It will be further noted that the lever 36 is continuously oscillated by the movement of the picker shaft 31. During the weaving action of the shuttle into and out of the box 25, the weaver inserts a full shuttle in the box 2%. 'hen the yarn on the operating shuttle is reduced to such quantity to permit the hooked portion 89 of the contact finger 82 tobe raised above the level of the shuttle, said contact finger will engage the contact plate 2 9 and move it into engagement with the box frame 28 which is in metallic connection with the frame 38 and an electric current will then be passed through the elec tro-magnet 47. .Vhen the electro-magnet a7 is thus energized it will swing its armature and raise the link rod 44; to effect the movement of the hook 13 into the path of the lever 36. This lever 36 during its next forward oscillation will carry with it, due

to its engagement with the hook 413, the arm 4:2 and pivot pin 41 and will swing the pawl 39 from the position shown in Fig. 3 so that its upper end will engage within the notch 63 as shown in Fig. 4; the spring yielding to permit such action. Also since the pivot pin 41 is moved forwardly, the link 48 and its extension 51 will also be moved forwardly to cause the wire or cable 53 to be pulled. This latter action causes the member 21 to be moved so as to cause the pin 20 to engage the star wheel 23 and thereby move the chain wheel 15 and chain 16 to bring the ball 17 into action which controls the raising of the lowest shuttle box 26 into alinement with the shuttle race; said act-ion in the present instance being effected by the lowering movement of the second box lever 19 and the pulling movement of the third box lever 18. After the above action and during its next pick the operating shuttle will enter the box 26 and since the latter has the opening 30 in its bottom, the shuttle will fall therefrom preferably into a receptacle (not illustrated) placed. thereto to receive the empty shuttle.

During the above mentioned lowering movement of the second box lever 19, the latch releaser (36 will be lowered, due to the slacking action on the cable and tension of the spring 67, and the tooth 74 will move under the lug 75 on the detent latch 60 as shown in Fig. 5. The next movement of the star wheel 23 by the pin 20 brings the chain 16 into such position that it will immediately effect the movement of the shuttle box frame so that the latter drops to aline the top box 2% with the shuttle race. The full shuttle previously mentioned as being placed in said box 2% will be shot across the race on the next pick.

The above mentioned lowering movement of the shuttle box frame is effected by the dropping of the third box lever 18 in the usual manner. During the next action of the star wheel by the pin 20, the box lever 19 will be raised to bring the box 25 into line with the shuttle race and at the same time the cable 7 0 will be pulled to raise the latch releaser and thereby lift the detent latch 60 out of engagement with the pawl 39, after which said pawl 39 will be swung by the spring 49 into the position shown in Fig. 6 and the cable '70 will be slacked to permit the spring 57" to move the member 21 and thereby prevent the pin 20 from actuating the star wheel 22 permitting the intermediate shuttle box 25 to remain in line with the shuttle race during the continued weaving operation until the yarn therein has been nearly exhausted and then the action will again take place as above described.

\Vhen the latch releaser 6G is raised to lift the detent latch 60 as above described, the cam portion 7 G will act against the swell 77 to be released from the tooth 74 of the latch releaser 66 and Fig. 3 shows the relative position of the parts after the detent latch 60 has moved downwardly free of the latch releascr (5G ready for the next shuttle ejecting operation.

If it is desired at any time for any reason whatever to effect the ejection of an operat ing shuttle, the same can be done at the will of the weaver by pressing the electric button 81 which will cause the electro-magnet to be energized and thereby effect the movement of the parts in the samemanner as if the action were full automatic as above described.

lVhile I have described my invention as taking a particular to m, it will be understood that the various parts of my invention may be changed without departing from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make "such changes and alterations as fairly come- 30 within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination in a loom having three superimposed shuttle boxes, the lowest one of which being provided with an open ing out of which a shuttle can fall when shot therein, of means for maintaining the top box above the race and the middle box in alinement with the race during the normal operation of the loom whereby a weaver can conveniently insert a full shuttle in the uppermost box; and means for automatically effecting the raising of the lowest box into alinement with the race to receive the op erative shuttle when the yarn therein has been exhausted, said latter means being operative immediately thereafter to lower the uppermost box into alinement with the race to deliver said full shuttle to the race and then return and again maintain said middle box in alinement with said race; substantially as described.

The combination with a loom including shuttle box controlling means, of a shuttle having a contact finger normally held in an inoperative position due to engagement with the yarn within said shuttle; electrically operated means for effecting the ejec tion of said shuttle and including a contact member, an electro-magnet and source of electrical energy in electrical connection with each other and with said contact memher; a plurality of shuttle boxes, certain of which being adapted to be positioned to normally receive the shuttle during the weaving operation, another of said boxes having an opening out of which the shuttle can fall when shot therein, said contacting member being positioned adjacent the path of said shuttle into said normally positioned shuttle box, said contact finger being normally held by the yarn so as not to contact with said contacting member, said contact inger due to the reduction of the quantity of yarn caused by the weaving operation,

being operative to engage said contacting member and thereby complete an electric circuit through said electro-magnet; means moved by the electro-magnet when thus energized to effect the movement of said second mentioned shuttle box to receive said shuttle and afterward permit the shuttle to drop therefrom; means operatively connected to said shuttle box controlling means and to said means which is moved by the electromagnet; means for moving said latter operatively connected means when said electromagnet and connected means is operated whereby the shuttle box controlling means is rendered effective to move another of said boxes, into which a full bobbin can be placed, in the position to permit said full shuttle to be thrown into operation; means for looking the shuttle box controlling means in operative position to effect movement of said latter mentioned box out of said latter position and to bring said first mentioned box into said normal position to permit the loom to weave with said full shuttle; and means for releasing said means which is connected to said shuttle box controlling means whereby said latter mentioned shuttle box is maintained in its normal position to receive said latter shuttle during the continued weaving operation; substantially as described.

3. The combination with a loom including shuttle box controlling means, of a shuttle having a contact finger normally held in an inoperative position due to engagement with the yarn within said shuttle; electrically operated means for eflecting the ejection of said shuttle and including a contact member, an electroanagnet and source of electrical energy in electrical connection with each other and with said contact member; a plurality of shuttle boxes, certain of which being adapted to be positioned to normally receive the shuttle during the weaving operation, another of said boxes having an opening out of which the shuttle can fall when shot therein, said contacting member being positioned adjacent the path of said shuttle into said normally positioned shuttle box, said contact finger being normally held by the yarn so as not to contact with said contacting member, said contact finger due to the reduction of the quantity of yarn caused by the weaving operation, being operative to engage said contacting member and thereby complete an electric circuit through said electro-magnet; means moved by the electromagnet when thus energized to effect the movement of said second mentioned shuttle box to receive said shuttle and afterward permit the shuttle to drop therefrom; means operatively connected to said shuttle box controlling means and to said means which is moved by the electro magnet; means for moving said latter operatively connected means when said electro-magnet and connected means is operated whereby the shuttle box controlling means is rendered effective to move another of said boxes, into which a full bobbin can be placed, in the position to permit said full shuttle to be thrown into operation; means for locking the shuttle box controlling means in operative position to effect movement of said latter mentioned box out of said latter position and to bring said first mentioned box into said normal position to permit the loom to weave with said full shuttle, said locking means including a pawl and a toothed detent latch; and means for releasing said means which is connected to said shuttle box controlling means whereby said latter mentioned shuttle box is maintained in its normal position to receive said latter shuttle during the continued weaving operation, -said releasing means including a latch releaser operatively connected to said shuttle box controlling means and movable to lift said detent latch to free said pawl whereby the latter is moved into a position to permit said box' controlling means to hold said last mentioned shuttle box in said latter position; substantially as described.

4. The combination with a loom of a shuttle having a contact finger normally held in an inoperative position due to engagement with the yarn within said shuttle; electrically operated means for effecting the ejection of said shuttle and including a contact member, an electro-magnet and source of electrical energy in electrical connection with each other and with said contact member; a plurality of shuttle boxes, certain of which being adapted to be positioned to normally receive the shuttle during the weaving operation, another of said boxes having an opening out of which the shuttle can fall when shot therein, said contacting member being positioned adjacent the path of said shuttle into said normally positioned shuttle box, said contact finger being normally held by the yarn so as not to contact with said contacting member said contact finger due to the reduction of the quantity of yarn, caused by the weaving operation, being operative to engage said contacting member and thereby complete an electric circuit through said electro-magnet; means moved by the electromagnet when thus energized, said magnet moved means including an arm and a hook thereon whereby the hook is swung due to the action of said magnet; means operative due to the action of the loom for moving said hook when thus actuated by the electromagnet; and means operatively connected to said arm and to the shuttle box controlling means of the loom for effecting the movement of said second mentioned shuttle box to receive said shuttle and afterward cause the shuttle to drop therefrom; substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HARRY M. WHITE.

Witnesses:

ANNA RnN'roN, CHAS. E. POTTS. 

